Harvey "Chris" Rosenberg (also known as Chris DeMeo) (October 6, 1950 – May 11, 1979) was a Jewish-American member of the DeMeo crew run by Gambino crime family soldier Roy DeMeo. The gang is suspected of between 75–200 murders in the mid-1970s to the early 1980s. Following a failed narcotics deal with a Cuban drug cartel that Rosenberg stole from, DeMeo killed Rosenberg as restitution.
Edward "Danny" Grillo (1934 – November 14, 1978) was a member of a Gambino crime family crew headed by soldier Roy DeMeo. After falling deeply into debt to DeMeo and other loansharks, Grillo was murdered by his own associates in the DeMeo Crew.
Roy DeMeo and the Gemini Method Gambino family member and feared killer Roy DeMeo is notorious for heading a crew of professional murderers who carried out killings using the "Gemini Method." Named after the Gemini Lounge, DeMeo's bar in Brooklyn, the method was the way in which DeMeo and his crew made, according to the FBI's estimates, between 75 and 200 people "disappear."